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Performance by Design: Computer Capacity Planning by Example by Daniel A. Menascé, Lawrence W. Dowdy, Virgilio A.F. Almeida

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Chapter 4. Performance Engineering Methodology

Introduction

Here is a central question: how can one plan, design, develop, deploy and operate IT services that meet the ever increasing demands for performance, availability, reliability, security, and cost? Or, being more specific, is a given IT system properly designed and sized for a given load condition? Can the insurance claims management system meet the performance requirement of subsecond response time? Is the infrastructure of a government agency scalable and can it cope with the new online security policies required for financial transactions? Can the security mechanisms be implemented without sacrificing user-perceived performance? Is the reservations system for cruise lines able to respond ...

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